Eutrophication is a major issue for many water bodies around the world. Phytoextraction can mitigate eutrophication; however, it has not been done with agricultural crops to produce a harvestable product that removes nutrients from stream systems. We modeled eddy systems and used watercress plants to mitigate nutrient loading in a closed system. We found that watercress removed phosphate from the system but was ineffective at removing ammonium and nitrate.
